IC: o3_volume_mix_ratio still used

[ambrad]

Issue to track that v1 IC files still have o3_volume_mix_ratio, which is different than in EAM.

[brhillman]

Removing o3 from the initial condition files requires porting the prescribed ozone treatment from EAM. I believe this is just a 3d interpolation (time, column, level), but I have not looked at the details in a while. I'm tagging this as help wanted in case anyone has interest in doing this before I can get to it, and because there's folks here that have far more experience with interpolation/remap in EAMxx than I do.